CA2291264A1 - Grinding machine - Google Patents
Grinding machine Download PDFInfo
- Publication number
- CA2291264A1 CA2291264A1 CA002291264A CA2291264A CA2291264A1 CA 2291264 A1 CA2291264 A1 CA 2291264A1 CA 002291264 A CA002291264 A CA 002291264A CA 2291264 A CA2291264 A CA 2291264A CA 2291264 A1 CA2291264 A1 CA 2291264A1
- Authority
- CA
- Canada
- Prior art keywords
- holders
- casing
- frame
- grinding machine
- rotation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/04—Headstocks; Working-spindles; Features relating thereto
- B24B41/047—Grinding heads for working on plane surfaces
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
- Absorbent Articles And Supports Therefor (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
- Holo Graphy (AREA)
- Shovels (AREA)
- Crushing And Grinding (AREA)
- Inorganic Insulating Materials (AREA)
- Liquid Crystal (AREA)
- Surgical Instruments (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
Abstract
A grinding machine comprises a frame having a rotary casing that bears rotary holders for grinding discs, as well as a drive motor which is mounted on the frame and interacts with the casing and the holders to drive the machine. The drive motor is connected by means of a continuous flexible or articulated element to the holders for driving the latter in the direction of rotation, wherein at least one of the holders is coupled to the frame by means of a gear transmission, in order to bring the casing into rotation when said holder is driven.
Description
Grindin,~ machine The invention relates to a grinding machine comprising a frame having a rotary casing that bears rotary holders for grinding discs, as well as a drive motor which is mounted on the frame and interacts with the casing and the holders to drive the machine.
A grinding machine of this type is disclosed in US-A 1 928 390. This known grinding machine has a drive shaft which is connected to the drive motor via a gear transmission. The drive shaft is directly connected to the casing, which can thus be brought into rotation.
With this arrangement, the holders for the grinding discs are brought into rotation via a V-belt, which is fed around a stationary pulley on the frame, and pulleys on the shafts of the holders.
A drive system of this type has various disadvantages. For instance, it is not easy to change the relative speeds of rotation of casing and holders with respect to one another, nor is it easy to change their relative direction of rotation.
Because the drive shaft is connected directly to the casing, a reduction unit has to be incorporated between drive motor and said drive shaft, since otherwise the casing would rotate too rapidly.
The aim of the invention is to provide a grinding machine which does not have these disadvantages. Said aim is achieved in that the drive motor is connected by means of a continuous flexible or articulated element to the holders for driving the latter in the direction of rotation, and in that at least one of the holders is coupled to the frame by means of a gear transmission, in order to bring the casing into rotation when said holder is driven.
With the grinding machine according to the invention the drive motor is connected to the grinding discs, which can be driven at a relatively high speed of rotation. It is therefore not necessary to provide a reduction transmission in the drive shaft: any necessary reduction in speed can easily be obtained by selecting, in a suitable manner, the diameters of the pulleys concerned.
The casing can rotate at an appreciably reduced speed of rotation, in which context the reduction in speed can be supplied by the gear transmission.
A grinding machine of this type is disclosed in US-A 1 928 390. This known grinding machine has a drive shaft which is connected to the drive motor via a gear transmission. The drive shaft is directly connected to the casing, which can thus be brought into rotation.
With this arrangement, the holders for the grinding discs are brought into rotation via a V-belt, which is fed around a stationary pulley on the frame, and pulleys on the shafts of the holders.
A drive system of this type has various disadvantages. For instance, it is not easy to change the relative speeds of rotation of casing and holders with respect to one another, nor is it easy to change their relative direction of rotation.
Because the drive shaft is connected directly to the casing, a reduction unit has to be incorporated between drive motor and said drive shaft, since otherwise the casing would rotate too rapidly.
The aim of the invention is to provide a grinding machine which does not have these disadvantages. Said aim is achieved in that the drive motor is connected by means of a continuous flexible or articulated element to the holders for driving the latter in the direction of rotation, and in that at least one of the holders is coupled to the frame by means of a gear transmission, in order to bring the casing into rotation when said holder is driven.
With the grinding machine according to the invention the drive motor is connected to the grinding discs, which can be driven at a relatively high speed of rotation. It is therefore not necessary to provide a reduction transmission in the drive shaft: any necessary reduction in speed can easily be obtained by selecting, in a suitable manner, the diameters of the pulleys concerned.
The casing can rotate at an appreciably reduced speed of rotation, in which context the reduction in speed can be supplied by the gear transmission.
Said gear transmission can be obtained in wide variety of ways. However, an embodiment in which the frame has a sun gear that interacts with at least one satellite gear, which is rotatably connected to the casing and interacts with the at least one holder, is preferred.
In order to obtain the desired reduction in speed and/or relative direction of rotation of holders and casing, the at least one holder can have a shaft with a gear, which gear interacts with the satellite gear.
The invention will be explained in more detail below with reference to an illustrative embodiment shown in the figures.
Figure 1 shows a partial view, in cross-section, of the grinding machine according to the invention.
Figure 2 shows a top view.
Figure 3 shows the cross-section III-III according to Figure 1.
The grinding machine according to the invention shown in Figure 1 comprises a drive motor 1 with drive shaft la. Said drive motor 1 is mounted on a frame 2, on which an operating device, which is not further shown, can be mounted.
The frame 2 has a sun gear 2a and is further connected via bearing 8 to the casing 3, which can be rotated relative to the frame 2.
Three holders 7 for grinding discs are rotatably mounted in the rotary casing 3.
Each holder has a shaft 4, which is rotatably connected to the casing 3 by means of bearings 9, 10.
A pulley 4a is mounted on each shaft 4, whilst a pulley lb is mounted on the drive shaft la. As can be seen in the cross-section according to Figure 3, a drive belt 6 is fed around said pulleys such that the holders 7 together with grinding discs rotate in a direction counter to the drive shaft la. Tensioning wheels 11, 12 also engage on the drive belt 6, the latter tensioning wheel 12 being able to maintain the pre-tension in the drive belt 6 by means of spring contact.
A gear 4b is mounted on each shaft 4, which shafts 4 protrude above the casing 3. Said gears 4b interact with planetary gears Sa, which are each supported by means of bearings 13 on a shaft 14. The planetary gears Sa, which on rotation of the holders 7 with grinding discs are driven by the gears 4b, turn around the sun gear 2a on the frame such that the casing 3, as shown in Figures 2 and 3, acquires a direction of rotation which is counter to that of the holders 7 with grinding discs.
By using gears 4b and planetary gears Sa with different diameters, the relative speed of rotation of the holders 7 with grinding discs, on the one hand, and of the casing 3, on the other hand, can easily be varied. By making the gears 4b engage directly on the sun gear 2a, it is also possible to make the casing rotatable in the same direction as the holders 7 with grinding discs.
In order to obtain the desired reduction in speed and/or relative direction of rotation of holders and casing, the at least one holder can have a shaft with a gear, which gear interacts with the satellite gear.
The invention will be explained in more detail below with reference to an illustrative embodiment shown in the figures.
Figure 1 shows a partial view, in cross-section, of the grinding machine according to the invention.
Figure 2 shows a top view.
Figure 3 shows the cross-section III-III according to Figure 1.
The grinding machine according to the invention shown in Figure 1 comprises a drive motor 1 with drive shaft la. Said drive motor 1 is mounted on a frame 2, on which an operating device, which is not further shown, can be mounted.
The frame 2 has a sun gear 2a and is further connected via bearing 8 to the casing 3, which can be rotated relative to the frame 2.
Three holders 7 for grinding discs are rotatably mounted in the rotary casing 3.
Each holder has a shaft 4, which is rotatably connected to the casing 3 by means of bearings 9, 10.
A pulley 4a is mounted on each shaft 4, whilst a pulley lb is mounted on the drive shaft la. As can be seen in the cross-section according to Figure 3, a drive belt 6 is fed around said pulleys such that the holders 7 together with grinding discs rotate in a direction counter to the drive shaft la. Tensioning wheels 11, 12 also engage on the drive belt 6, the latter tensioning wheel 12 being able to maintain the pre-tension in the drive belt 6 by means of spring contact.
A gear 4b is mounted on each shaft 4, which shafts 4 protrude above the casing 3. Said gears 4b interact with planetary gears Sa, which are each supported by means of bearings 13 on a shaft 14. The planetary gears Sa, which on rotation of the holders 7 with grinding discs are driven by the gears 4b, turn around the sun gear 2a on the frame such that the casing 3, as shown in Figures 2 and 3, acquires a direction of rotation which is counter to that of the holders 7 with grinding discs.
By using gears 4b and planetary gears Sa with different diameters, the relative speed of rotation of the holders 7 with grinding discs, on the one hand, and of the casing 3, on the other hand, can easily be varied. By making the gears 4b engage directly on the sun gear 2a, it is also possible to make the casing rotatable in the same direction as the holders 7 with grinding discs.
Claims (5)
1. Grinding machine comprising a frame (2) having a rotary casing (3) that bears rotary holders (7) for grinding discs, as well as a drive motor (1) which is mounted on the frame (2) and interacts with the casing (3) and the holders (7) to drive the machine, characterised in that the drive motor (1) is connected by means of a continuous flexible or articulated element (6) to the holders (7) for driving the latter in the direction of rotation, and in that at least one of the holders (7) is coupled to the frame (2) by means of a gear transmission (2a, 4b, 5a), in order to bring the casing (3) into rotation when said holder (7) is driven.
2. Grinding machine according to Claim 1, wherein the frame (2) has a sun gear (2a) that interacts with at least one satellite gear (5a) which is rotatably connected to the casing (3) and interacts with the at least one holder (7).
3. Grinding machine according to Claim 2, wherein the at least one holder (7) has a shaft (4) with a gear (4a), which gear interacts with the satellite gear (5a).
4. Grinding machine according to one of the preceding claims, wherein three holders are provided.
5. Grinding machine according to one of the preceding claims, wherein the flexible or articulated element (6) is fed around a pulley (1b), coupled to the drive motor (1), and pulleys (4a), connected to the holders (7), in such a way that the direction of rotation of the holders (7) is counter to that of the drive motor (1).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL1006141 | 1997-05-27 | ||
| NL1006141A NL1006141C1 (en) | 1997-05-27 | 1997-05-27 | Grinding machine. |
| PCT/NL1998/000309 WO1998053953A1 (en) | 1997-05-27 | 1998-05-27 | Grinding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2291264A1 true CA2291264A1 (en) | 1998-12-03 |
Family
ID=19765030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002291264A Abandoned CA2291264A1 (en) | 1997-05-27 | 1998-05-27 | Grinding machine |
Country Status (16)
| Country | Link |
|---|---|
| US (1) | US6331138B1 (en) |
| EP (1) | EP0984845B1 (en) |
| JP (1) | JP2002500571A (en) |
| KR (1) | KR20010013069A (en) |
| AT (1) | ATE269190T1 (en) |
| AU (1) | AU731304B2 (en) |
| BR (1) | BR9809502A (en) |
| CA (1) | CA2291264A1 (en) |
| DE (1) | DE69824583T2 (en) |
| DK (1) | DK0984845T3 (en) |
| ES (1) | ES2223131T3 (en) |
| NL (1) | NL1006141C1 (en) |
| NO (1) | NO995766L (en) |
| NZ (1) | NZ501272A (en) |
| PL (1) | PL337093A1 (en) |
| WO (1) | WO1998053953A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009073988A1 (en) * | 2007-12-13 | 2009-06-18 | Groupe Russotti Inc. | Floor grinding apparatus |
Families Citing this family (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE518356C2 (en) | 2001-02-06 | 2002-10-01 | Haakan Thysell | Device for mobile machine for grinding floor surfaces |
| US6778994B2 (en) | 2001-05-02 | 2004-08-17 | Victor Gogolak | Pharmacovigilance database |
| US7542961B2 (en) * | 2001-05-02 | 2009-06-02 | Victor Gogolak | Method and system for analyzing drug adverse effects |
| US7925612B2 (en) * | 2001-05-02 | 2011-04-12 | Victor Gogolak | Method for graphically depicting drug adverse effect risks |
| US6595838B1 (en) * | 2001-07-23 | 2003-07-22 | Onfloor Technologies, Llc | Wood floor sanding machine |
| US7261623B1 (en) * | 2001-07-23 | 2007-08-28 | Onfloor Technologies, L.L.C. | Wood floor sanding machine |
| US7461006B2 (en) * | 2001-08-29 | 2008-12-02 | Victor Gogolak | Method and system for the analysis and association of patient-specific and population-based genomic data with drug safety adverse event data |
| SE525224C2 (en) * | 2003-06-11 | 2004-12-28 | Htc Sweden Ab | Device for grinding a wall of stone or concrete material |
| US20060276283A1 (en) * | 2005-06-01 | 2006-12-07 | Hakan Thysell | Mobile machine for screeding floor surfaces and the like |
| US8342914B2 (en) * | 2005-06-01 | 2013-01-01 | Htc Sweden Ab | Mobile machine for screeding floor surfaces and the like |
| WO2007044343A2 (en) * | 2005-10-05 | 2007-04-19 | Vankouwenberg Raymond E | Planetary drive heads for grinding/polishing pads |
| US7326106B1 (en) | 2005-12-02 | 2008-02-05 | Vic International Corporation | Device for treating flooring surfaces |
| US20070155285A1 (en) * | 2006-01-05 | 2007-07-05 | Cpt, Inc. | Riding floor polishing machine |
| US7226347B1 (en) | 2006-01-09 | 2007-06-05 | Cpt, Inc. | Walk behind polisher |
| ATE404324T1 (en) * | 2006-01-10 | 2008-08-15 | Air Tec Ag | FLOOR GRINDER |
| WO2007111766A1 (en) * | 2006-03-24 | 2007-10-04 | Blastrac N.A., Inc. | Device and method for extraction of dust from a grinder |
| US20070278843A1 (en) * | 2006-05-30 | 2007-12-06 | Popov Georgi M | Surface conditioning attachment |
| SE530622C3 (en) * | 2006-12-06 | 2008-08-19 | Scanmaskin Sverige Ab | Device for operation of grinding machine |
| ATE458584T1 (en) * | 2007-03-12 | 2010-03-15 | Htc Sweden Ab | SOIL TILLING EQUIPMENT |
| US8393937B2 (en) * | 2007-07-20 | 2013-03-12 | Onfloor Technologies, L.L.C. | Floor finishing machine |
| US8282445B2 (en) | 2007-07-20 | 2012-10-09 | Onfloor Technologies, L.L.C. | Floor finishing apparatus |
| US7563156B2 (en) * | 2007-09-13 | 2009-07-21 | National Carpet Equipment, Inc. | Planetary grinder |
| US8684796B2 (en) | 2011-10-04 | 2014-04-01 | Krmc, Llc | Floor grinding and polishing machine |
| JP5708899B2 (en) * | 2013-02-05 | 2015-04-30 | 新東工業株式会社 | Brush unit, brush polishing apparatus including the brush unit, brush polishing system, and brush polishing method |
| RU167532U1 (en) * | 2015-12-22 | 2017-01-10 | Федеральное государственное автономное образовательное учреждение высшего образования "Уральский федеральный университет имени первого Президента России Б.Н. Ельцина" | PLANETARY GRINDING HEAD |
| US11633831B2 (en) * | 2016-06-03 | 2023-04-25 | Husqvarna Ab | Grinding head for floor grinding machine comprising at least one belt pulley, floor grinding machines and methods |
| SE542092C2 (en) | 2016-06-03 | 2020-02-25 | Husqvarna Ab | Grinding head for floor grinding machine and a floor grinding machine comprising such a grinding head |
| US10632586B1 (en) * | 2018-01-23 | 2020-04-28 | Amano Pioneer Eclipse Corporation | Two speed multi head wood floor sanding system |
| RU2756471C1 (en) * | 2020-11-09 | 2021-09-30 | Федеральное государственное автономное образовательное учреждение высшего образования "Уральский федеральный университет имени первого Президента России Б.Н. Ельцина" | Grinding head |
| RU2767320C1 (en) * | 2021-04-14 | 2022-03-17 | Федеральное государственное автономное образовательное учреждение высшего образования "Уральский федеральный университет имени первого Президента России Б.Н. Ельцина" | Planetary grinding head |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1928390A (en) | 1932-05-28 | 1933-09-26 | American Floor Surfacing Mach | Planetary type surfacing machine |
| US2948087A (en) * | 1958-11-03 | 1960-08-09 | Reproduction Res Lab Inc | Plate graining apparatus |
| FR2432239A1 (en) * | 1978-07-26 | 1980-02-22 | Sagem | Torque motor electromagnetic DC drive - has fixed and movable units, former with permanent magnets, magnetic circuits and windings |
| DE2929479A1 (en) * | 1979-07-20 | 1981-02-05 | Meyer Carl Steinbearbeitungs M | Stone surface flat grinding machine - has rotary bracket and eccentric grinder plate turning in opposite directions |
| US4328645A (en) * | 1980-06-04 | 1982-05-11 | The Boeing Company | Multiple spindle flexible sanding head |
| SE501448C2 (en) * | 1992-10-22 | 1995-02-20 | Haakan Thysell | Device for a mobile grinding machine for grinding stone floors |
-
1997
- 1997-05-27 NL NL1006141A patent/NL1006141C1/en not_active IP Right Cessation
-
1998
- 1998-05-27 BR BR9809502-1A patent/BR9809502A/en not_active Application Discontinuation
- 1998-05-27 DE DE69824583T patent/DE69824583T2/en not_active Expired - Fee Related
- 1998-05-27 AU AU77911/98A patent/AU731304B2/en not_active Ceased
- 1998-05-27 PL PL98337093A patent/PL337093A1/en unknown
- 1998-05-27 JP JP50053099A patent/JP2002500571A/en not_active Ceased
- 1998-05-27 CA CA002291264A patent/CA2291264A1/en not_active Abandoned
- 1998-05-27 EP EP98925976A patent/EP0984845B1/en not_active Expired - Lifetime
- 1998-05-27 ES ES98925976T patent/ES2223131T3/en not_active Expired - Lifetime
- 1998-05-27 DK DK98925976T patent/DK0984845T3/en active
- 1998-05-27 AT AT98925976T patent/ATE269190T1/en not_active IP Right Cessation
- 1998-05-27 US US09/424,887 patent/US6331138B1/en not_active Expired - Fee Related
- 1998-05-27 KR KR1019997011048A patent/KR20010013069A/en not_active Application Discontinuation
- 1998-05-27 NZ NZ501272A patent/NZ501272A/en unknown
- 1998-05-27 WO PCT/NL1998/000309 patent/WO1998053953A1/en active IP Right Grant
-
1999
- 1999-11-25 NO NO995766A patent/NO995766L/en not_active Application Discontinuation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009073988A1 (en) * | 2007-12-13 | 2009-06-18 | Groupe Russotti Inc. | Floor grinding apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| ATE269190T1 (en) | 2004-07-15 |
| DE69824583D1 (en) | 2004-07-22 |
| NO995766D0 (en) | 1999-11-25 |
| AU7791198A (en) | 1998-12-30 |
| NZ501272A (en) | 2001-06-29 |
| EP0984845A1 (en) | 2000-03-15 |
| BR9809502A (en) | 2000-06-20 |
| EP0984845B1 (en) | 2004-06-16 |
| ES2223131T3 (en) | 2005-02-16 |
| NL1006141C1 (en) | 1998-12-01 |
| NO995766L (en) | 2000-01-26 |
| AU731304B2 (en) | 2001-03-29 |
| US6331138B1 (en) | 2001-12-18 |
| DK0984845T3 (en) | 2004-08-09 |
| JP2002500571A (en) | 2002-01-08 |
| WO1998053953A1 (en) | 1998-12-03 |
| KR20010013069A (en) | 2001-02-26 |
| DE69824583T2 (en) | 2005-06-09 |
| PL337093A1 (en) | 2000-07-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |